example/
example.rs

1extern crate euclid;
2extern crate fixed;
3extern crate scaled;
4
5use scaled::{FixedSqrt, Point2d, Space2d, Vector2d};
6
7macro_rules! show {
8  ($e:expr) => { println!("{:<24}{:?}", format!("{}: ", stringify!($e)), $e); }
9}
10
11struct World;
12impl Space2d for World {
13  type Scalar = fixed::types::I16F16;
14  type Point  = euclid::Point2D  <Self::Scalar, Self>;
15  type Vector = euclid::Vector2D <Self::Scalar, Self>;
16}
17type Scalar = <World as Space2d>::Scalar;
18type Point  = <World as Space2d>::Point;
19type Vector = <World as Space2d>::Vector;
20
21fn main() {
22  use std::mem::size_of;
23  use fixed::traits::ToFixed;
24  println!("example main...");
25
26  show!(size_of::<Scalar>());
27  show!(size_of::<Point>());
28  show!(size_of::<Vector>());
29
30  show!(Scalar::MIN);
31  show!(Scalar::MAX);
32  show!(Scalar::MAX.sqrt());
33
34  let x : Scalar = 1.to_fixed();
35  let y = Scalar::from_num (-1);
36  show!(x);
37  show!(x.to_bits());
38  show!(y);
39  show!(y.to_bits());
40  show!(y + x);
41  show!(y - x);
42  let e = euclid::Point2D::new (1.0, 2.0);
43  show!(e);
44  show!(Point::from_num (e));
45  let ppp : Point = [x, y].into();
46  show!(ppp);
47  let pp : Point = (x, y).into();
48  show!(pp);
49  let p = Point::new (x, y);
50  show!(p);
51  show!(p.to_bits());
52  show!(p.to_num::<f64>());
53  let v = Vector::new (x, y);
54  show!(v);
55  show!(v.to_bits());
56  show!(v.to_num::<f64>());
57  show!(v.square_length());
58  show!(v.magnitude2());
59  show!(v.magnitude());
60  show!(v.normalized());
61  let two = Scalar::from_num (2);
62  show!(v * two);
63  show!(p + v);
64  // euclid::Point2D::origin can't infer that Scalar : num_traits::Zero so we
65  // have to use Point2d::origin instead
66  let o : Point = Point2d::origin();
67  show!(o);
68  show!(o - p);
69  let w = Vector::from_num ([127.0, 127.0].into());
70  show!(w);
71  show!(w.magnitude());
72  show!(w.magnitude2());
73  show!(w.normalized());
74  let w = Vector::from_num ([256.0, 256.0].into());
75  show!(w);
76  show!(w.magnitude());
77  show!(w.magnitude2());
78  show!(w.normalized());
79
80  println!("...example main");
81}
example/example.rs

example/
example.rs
